Blow-out patch.



n citizen of the United States,

sin:

mmmuwmnnmlm mw- JESSE M'. sluiten, on maitresse-nerr, rnnnsvnvnme!nnen-oor Perron, l i

To all 'whom t may concern:

Be it known that I, JESSE M. SMITH zt and residing in the cityofPittsburgh, in the county of Allegheny and State of Pennsylvania, have iinvented or discovered nen7 and useful ln1- provemente in Blow-OutPetchesvoftwhieh the following is a speciioation.`

Myinvention comprises .e new und iinproved blow-out patch for pneumatictires. f `The object in'view is -`the provision oit' ineens whereby thehole or rupture in the shoeof a pneumatic tire may be quickly end.readily mended so that the tire may be reinitiated, if necessary, andthe travel-of the vehicle resumed withoutl stopping to make repeirsbythe operation of vulcenzing. l

My improved patchl member consists of a. plete of mete-l, preerahiy ofductile metal, such as malleable cast metal, aluminum or' mild steel,provided on one fece 'with integral attaching or nailing studs which aredriven into th'e materiel of the. shoe, Whichplate is' positionedtocoverv the rupture or hole in the Shoe. The studs preferably, at lestinsome instances, erelong enough to protrude through the vshoe :md beclenched 'at the opposite surface of the latter. Iprefer tovapply myimproved patchfto the inner surface of the shoe, but, if desired, thepatch maybe applied to the outer surface of the shoe, or two patchen maybe used, one on thefinner surface end one on the outer surface ofitheshoe. The plete is preferably curved to vfit the surface to which it isto'be applied or the ductility of its material may enable lit to be bentinto the proper curvature while it is being :nurnmered into place. Intheaccompanyingdrawings, Figure 1s a. cross-sectional View of apneumatic tire, including both the outer-shoe and the inner tube, andshowing one of my. ini-proved patches applied to the inner surface ofthe shoe with the inn-r ftube bearingv Against seid patch; Fig. 2 is a,broken similar view, with the inner tube omitted, showing the patchapplied to the exterior surfnce of the shoe; Fig. 3 is :i like viewshowing twof patches in use, one applied to the inner sur face and oneapplied to the outer surface of the shoe,rand Fig. 4 is' a faceview ofone et the patches showing the integral studs.

The following isaf. detailed description of the drawings, referencebeing tirst had to Fig. lv of the drawings.

Speicationof Letters 'atent.

of the metal results in the ot' the proper character to Vfissure asecure A represents y the tire shoe and .B the innervtube. C representsa, rupture orlhole in the s oe, suol/ies is frequently the result. of eblow-out or other causes. y y

D represents my improved inetal blowout patch which consists of e plete,preferebly made of ductile metal, andprovided on one'face with eplurality of integral studs of neil-like form, which are driven 65 intothe materiel of the shoe around the rupture or hole to secure the pletein position tocover the weakened portion of the shoe. ".llhe pleteshould be of suiicient areato cover enough of the shoe about the lrup-70 ture' or hole to enefole the studs to obtain u secure grip on theshoe to `prevent eccidental loosening ot the patch, and the patch ispreferably curved to substantially the surface to which :it is to,beepplied vSuchA t 75 j as the ductility plate being bent into snug itasits studs are driven into, the shoe. The studs may be only ofsuiiineed only 'be approxi-mate,

cientiength to enter into.the-n1eterial of so the shoe, or they .may beof suicient length to extend through the Shoeend be clenched on the.opposite surface of the latter. I have shown my` patch provided bothwith studs which do not and which do extend a5 t'lnfougg the shoe-vanarrangement whichl l l consider practical and preferable.-

The number of the studs provided may of course be varied, so long assufliclent studs attachment of the etch ere provided.

The edges of tiche exposed feceV of the patch plate :ire preferablyvbeveled "down so es to ineke e smooth, relatively thin edge mergingwith the 'surface of the shoe '95 tociprevent teur or pinching ofthe'inner tube when. the vehicle is in nichon. For

.the saine purpose the corners of the plate ere, rounded. C u lifhen eblow-out occurs, the tire 1s re- 100 moved, :ind the portion of theinner tube adjacent to theblowrout pulledout to expose the innen surfaceo the shoe'. The patch. is then put'into position and hem nie-red into;piece with its studs driven into' l1,05 i

er through the historial of the, shoe, the protruding ends, if any, of'the studs oeingclenched .as shown. The hammering of the petc'h intoposition may be done by ineens of a hammer, the heed of a. Wrench 110yor even e stone picked up et the roadside The operation of hammering thepatch Patented June 1L i918.. v pplication ed September i9, im?. SerialBo. ls.

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vvided with rounded corners and studs extending from the face of theplate ,through the materiel of the 5h02 and ,p

clenched on the'other surface of the shoe andthe exposed fece of theplete being probeveled edges so as to merge smoothly with the materielof the shoe, substantially esV and for the purposes described.

4L.. A blow-out patch for pneumatic tires comprising a. plete of ductilemetal adapted to conform to the curvature ofy the tire shoe and forminga bridge covering the weekened portion of the shoe, seid' plete beingrovided with ntegralstuds extending from the fece ,of the plete throughthe materiel of the shoe and clenched on the other surfer/e' of the shoeand the exposed face of the plate being provided vwith. rounded cornersand beveled 'edges so as t'o merge smoothly with the materiel of theshoe, substantially as and for the purposes described.

Jesse M, sMiTH.

ISigned at Pittsburgh, Penna., September,

